32
Integrated Staging Control (ISC) Board
Fig. 55 —
Integrated Staging Control (ISC) Board
NOTES:
1. Green LED Blinking at 1Hz indicates normal operation.
2. Solid red LED indicates an error exists, see above LED configuration.
DDC
Control
Indoor Fan
“On” Status
IGC
Board
Power
Plug
Phase
Monitor
Relay
Auxilary
Shutdown
Condensate
Overflow
Economizer
Occupancy
Status Code LEDs
Thermostat
DDC
Control
Remote
Shutdown
Smoke
Shutdown
Smoke
Alarm
Low Ambient
Outdoor Fan
Control
Compressors
Reheat
Low-Pressure
Switch
High-Pressure
Switch
Indoor Fan
Motor
Outdoor Fan
Motors
Phase
Monitor
Relay
Table 8 —
Status Code Descriptions for ISC Board LEDs
ERROR #
ERROR NAME
LED INDICATION
LED01
LED02
LED03
LED04
LED05
1
Check Smoke Detector/PMR/AUX
RED
Blinking
Green
LED
(Note 1)
2
Check HPS/LPS/COFS
RED
RED
3
Call for Y3 with no call for Y1. Check Y1 wiring.
RED
4
Call for Y3 with no call for Y1/Y2. Check Y1 wiring.
RED
RED
5
Call for Y2 with no call for Y1. Check Y1 wiring.
RED
RED
6
Call for W2 with no call for W1. Check W1 wiring.
RED
RED
7
Call for heat (W1/W2) and cooling (Y1/Y2/Y3). Check thermostat wiring.
RED
RED
RED
RED
8
Call for heat (W1/W2) with no G. Check G wiring.
RED
RED
RED
9
Call for cooling (Y1/Y2/Y3) with no G. Check G wiring
RED
RED
RED
10
Call for heat (W1/W2) and cooling (Y1/Y2/Y3) with no G.
Check thermostat and G wiring.
RED
RED
RED
11
Check ISC Board and the thermostat wiring
RED
RED
RED
12
Check ISC Board and the thermostat wiring
RED
13
Check ISC Board and the thermostat wiring
RED
RED
14
Check ISC Board and the thermostat wiring
RED
15
Check ISC Board and the thermostat wiring
RED
RED
Summary of Contents for 48LC Series
Page 5: ...5 Fig 2 Unit Dimensional Drawing Size 08 Unit ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing Size 08 Unit cont ...
Page 7: ...7 Fig 3 Unit Dimensional Drawing Size 09 and 12 Units ...
Page 8: ...8 Fig 3 Unit Dimensional Drawing Size 09 and 12 Units cont ...
Page 11: ...11 Fig 6 Roof Curb Details Size 08 12 Units ...
Page 21: ...21 Fig 34 48LC 08 12 Electro mechanical Control Wiring Diagram ...
Page 22: ...22 Fig 35 48LC 08 12 RTU Open Control Wiring Diagram ...
Page 23: ...23 Fig 36 48LC 08 12 SystemVu Control Wiring Diagram ...
Page 25: ...25 Fig 38 48LC 08 12 Typical Power Wiring Diagram SystemVu Control 208 230 v Unit Shown ...
Page 61: ......